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$NetBSD: patch-src_mapi_u__current.c,v 1.3 2019/10/18 09:57:07 nia Exp $
NetBSD only supports zero-initialized initial-exec tls variables in conjuction
with dlopen(3) at the moment.
--- src/mapi/u_current.c.orig 2019-10-09 16:52:00.000000000 +0000
+++ src/mapi/u_current.c
@@ -101,7 +101,11 @@ extern void (*__glapi_noop_table[])(void
__thread struct _glapi_table *u_current_table
__attribute__((tls_model("initial-exec")))
+#if defined(__NetBSD__)
+ = NULL; /* non-zero initializers not supported with dlopen */
+#else
= (struct _glapi_table *) table_noop_array;
+#endif
__thread void *u_current_context
__attribute__((tls_model("initial-exec")));
@@ -283,7 +287,11 @@ struct _glapi_table *
u_current_get_table_internal(void)
{
#if defined(USE_ELF_TLS)
+# if defined(__NetBSD__)
+ return (likely(u_current_table) ? u_current_table : (struct _glapi_table *) table_noop_array);
+# else
return u_current_table;
+# endif
#else
if (ThreadSafe)
return (struct _glapi_table *) tss_get(u_current_table_tsd);
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